Hesam Iranmanesh; Elahe Arab Ameri; Ahmad Farrokhi; Hamideh Iranmanesh
Abstract
The aim of this study was to compare the effects of three types of balancetraining: single task, dual task under fixed priority instructional set (Fp) and dualtask under a variable priority instructional set (Vp) on the balance of the elderly.The participants were 36 elderly over 65 years old from Kerman ...
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The aim of this study was to compare the effects of three types of balancetraining: single task, dual task under fixed priority instructional set (Fp) and dualtask under a variable priority instructional set (Vp) on the balance of the elderly.The participants were 36 elderly over 65 years old from Kerman province whowere randomly divided into three groups (each 12 subjects) based on Burg pretestscores. The groups included single task, dual task under fixed priority and dualtask under variable priority. Experimental groups received 45 minutes of trainingsession, 3 sessions a week for 4 weeks. For data analysis, ANCOVA andBonferroni post hoc test were used at (P≤0.05). The results showed that asignificant difference between single task and dual task under fixed priority groupsand also between single task and dual task under variable priority (P=0.008 andP=0.000 respectively). There was no significant difference between dual task underfixed priority and variable priority groups (P=0.149). In addition, the results inTug test under dual task condition showed a significant difference between singletask and dual task under fixed priority groups and also between single task anddual task under variable priority groups and also between dual task under fixedand variable priority groups (P=0.035, P=0.033, P=0.000 respectively). Theresults showed that single and dual task balance training improved balanceperformance in the elderly but those who had training under dual taskoutperformed under single and dual task conditions.
Javad Parhizkar Kohneh Oghaz; Mehdi Zarghami; Ahmad Ghotbi Varzaneh; Amirhosein Ghorbani
Abstract
Postural control has an important role in daily activities and motor independence. In recent years, conscious aspects of postural control such as attention and cognitive processes have received attention for balance optimization performance. Therefore, the present study designed to examine the age–related ...
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Postural control has an important role in daily activities and motor independence. In recent years, conscious aspects of postural control such as attention and cognitive processes have received attention for balance optimization performance. Therefore, the present study designed to examine the age–related differences in postural control in the internal and external focus of attention. For this purpose, displacement of the anterior–posterior, middle–lateral and speed of center of pressure (cop), 22 elderly subjects (mean+SD=59.95±2.12 year) and 22 young men (mean+SD=24.16±2.76 year) who were selected from Shahid Chamran University students and staff purposefully and by availability were measured in three 30–second trials in the internal focus and three 30-second trials in external focus using force platform. After the normality of data had been tested with Kolmogorov-Smirnov test and the equality of variance had been tested using the Levene test, data were analyzed using multivariable variance analysis, one–way variance analysis and MANOVA. Results showed that postural stability of both groups in external focus was more than internal focus. These results supported limited action hypotheses and conscious processes. Also, in both conditions, young group had more postural stability than the elderly. It seems that the weaker performance of the elderly in both external and internal conditions was due to the effects of aging on sensorimotor systems.
